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<head><meta charset="utf-8"><title>regressions in #66517 · t-compiler/wg-nll · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/index.html">t-compiler/wg-nll</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html">regressions in #66517</a></h3>

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<a name="181316916"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181316916" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181316916">(Nov 21 2019 at 15:45)</a>:</h4>
<p>Hey all</p>



<a name="181316975"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181316975" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181316975">(Nov 21 2019 at 15:46)</a>:</h4>
<p>So <span class="user-mention" data-user-id="116113">@lqd</span> is working on improving the list of what's broken --</p>



<a name="181316982"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181316982" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181316982">(Nov 21 2019 at 15:46)</a>:</h4>
<p>darn it i was spending too much time trying to think of some play on "abandon hope all ye who ..."</p>



<a name="181316992"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181316992" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181316992">(Nov 21 2019 at 15:46)</a>:</h4>
<p>lol I made no effort at humor</p>



<a name="181317006"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317006" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317006">(Nov 21 2019 at 15:46)</a>:</h4>
<p>but now I wish I had!!</p>



<a name="181317181"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317181" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317181">(Nov 21 2019 at 15:48)</a>:</h4>
<p>(I'm a touch busy at work rn but I'm working on this in the bg)</p>



<a name="181317280"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317280" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317280">(Nov 21 2019 at 15:49)</a>:</h4>
<p>ok, my one question would be if there is some way to make a centralized "to do" list?</p>



<a name="181317285"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317285" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317285">(Nov 21 2019 at 15:49)</a>:</h4>
<p><span class="user-mention" data-user-id="116113">@lqd</span> if you can get through ~40 or so (or w/e, doesn't really matter), I'll try to finish up this weekend</p>



<a name="181317292"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317292" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317292">(Nov 21 2019 at 15:49)</a>:</h4>
<p>i.e., maybe a master hackmd that multiple people can work through?</p>



<a name="181317303"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317303" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317303">(Nov 21 2019 at 15:49)</a>:</h4>
<p>I think we should copy my comment into a hackmd</p>



<a name="181317307"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317307" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317307">(Nov 21 2019 at 15:49)</a>:</h4>
<p>(I won't have any time today myself, though)</p>



<a name="181317365"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317365" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317365">(Nov 21 2019 at 15:50)</a>:</h4>
<p>and then start crossing out or checking ticky boxes or something</p>



<a name="181317375"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181317375" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181317375">(Nov 21 2019 at 15:50)</a>:</h4>
<blockquote>
<p>I think we should copy my comment into a hackmd</p>
</blockquote>
<p>this is what I had in mind, <span aria-label="+1" class="emoji emoji-1f44d" role="img" title="+1">:+1:</span></p>



<a name="181319561"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181319561" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181319561">(Nov 21 2019 at 16:09)</a>:</h4>
<p>ok so, I'll 1) turn the comment into a todo list hackmd, 2) cross out the ones I've done, 3) keep checking out some of the others so that we at least have an idea</p>



<a name="181319648"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181319648" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181319648">(Nov 21 2019 at 16:10)</a>:</h4>
<p>and we can then fill it little by little</p>



<a name="181321391"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181321391" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181321391">(Nov 21 2019 at 16:26)</a>:</h4>
<p>I'm bit confused by the list btw, it seems already partially filtered ? (some roots mention X regressions but have no &lt;details&gt;, or less than X items in there)</p>



<a name="181323683"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181323683" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181323683">(Nov 21 2019 at 16:52)</a>:</h4>
<p>something like this ? <a href="https://hackmd.io/lKRRzo1sSpq82ZwCHQtfVg" target="_blank" title="https://hackmd.io/lKRRzo1sSpq82ZwCHQtfVg">https://hackmd.io/lKRRzo1sSpq82ZwCHQtfVg</a></p>



<a name="181329207"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329207" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329207">(Nov 21 2019 at 17:51)</a>:</h4>
<p><span class="user-mention" data-user-id="116113">@lqd</span> this looks great!</p>



<a name="181329276"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329276" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329276">(Nov 21 2019 at 17:52)</a>:</h4>
<p>Yes, the list deletes all the non-roots (details contains the list of regressions caused by that root, we don't care about those)</p>



<a name="181329338"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329338" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329338">(Nov 21 2019 at 17:53)</a>:</h4>
<p>hum some of the details exist, maybe I shouldn't have checked those ?</p>



<a name="181329383"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329383" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329383">(Nov 21 2019 at 17:53)</a>:</h4>
<p>I think I included a few, but shouldn't have</p>



<a name="181329390"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329390" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329390">(Nov 21 2019 at 17:53)</a>:</h4>
<p>in any case I added the existing ones as sublists</p>



<a name="181329467"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329467" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329467">(Nov 21 2019 at 17:54)</a>:</h4>
<p>oh -- I think I remember -- the sublists are presumably all of only one root; we need to fix the root, but not the sublist crates</p>



<a name="181329478"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329478" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329478">(Nov 21 2019 at 17:54)</a>:</h4>
<p>there's just not a handy link to the root itself sometimes</p>



<a name="181329561"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329561" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329561">(Nov 21 2019 at 17:55)</a>:</h4>
<p>yeah that's also why I usually go with versions (I've answered to your forge PR mention, describing a bit what I meant about my own process) :)</p>



<a name="181329747"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329747" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329747">(Nov 21 2019 at 17:57)</a>:</h4>
<p>yeah I have that in my queue :)</p>



<a name="181329798"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329798" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329798">(Nov 21 2019 at 17:57)</a>:</h4>
<p>queue of things to read or queue of things to do (wrt versions) ?</p>



<a name="181329986"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181329986" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181329986">(Nov 21 2019 at 17:59)</a>:</h4>
<p>(if it's the second, I can try to release said-tool, which is actually based on your old <code>crater-report-merge</code>, and is very similar to <code>crater-generate-report</code>)</p>



<a name="181330330"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181330330" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181330330">(Nov 21 2019 at 18:03)</a>:</h4>
<p>uh</p>



<a name="181330339"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181330339" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181330339">(Nov 21 2019 at 18:03)</a>:</h4>
<p>I have not yet read your comment</p>



<a name="181330345"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181330345" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181330345">(Nov 21 2019 at 18:03)</a>:</h4>
<p>not sure as to the later :)</p>



<a name="181577163"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181577163" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181577163">(Nov 21 2019 at 19:45)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> ok I've triaged and tested dozens (most reg ones, barely no gh) let me know what you think (but as we expected the vast majority of active ones I've seen have since released versions which build)</p>



<a name="181578053"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181578053" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181578053">(Nov 21 2019 at 19:54)</a>:</h4>
<p>Are those versions semver compatible? i.e. a cargo update away?</p>



<a name="181578287"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181578287" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181578287">(Nov 21 2019 at 19:57)</a>:</h4>
<p>unfortunately, no</p>



<a name="181578337"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181578337" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181578337">(Nov 21 2019 at 19:57)</a>:</h4>
<p>I've seen a couple which were published as incompatible but seemed actually compatible, but that wasn't the norm</p>



<a name="181578420"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181578420" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181578420">(Nov 21 2019 at 19:58)</a>:</h4>
<p>because these failing versions are generally pretty old</p>



<a name="181586711"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/181586711" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#181586711">(Nov 21 2019 at 21:35)</a>:</h4>
<p>okay we'll want to try and nag folks to publish a semver-compat version I think</p>



<a name="182118020"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118020" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118020">(Nov 28 2019 at 15:38)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> I hadn't seen you had completed the todo list, awesome, thank you</p>



<a name="182118037"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118037" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118037">(Nov 28 2019 at 15:38)</a>:</h4>
<p>ah there's a few left I think</p>



<a name="182118046"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118046" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118046">(Nov 28 2019 at 15:38)</a>:</h4>
<p>thrussh and one or two others</p>



<a name="182118078"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118078" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118078">(Nov 28 2019 at 15:39)</a>:</h4>
<p>djc has done a PR, I've done one as well (which was <a href="https://gitlab.com/stavros/espota-server/merge_requests/1" target="_blank" title="https://gitlab.com/stavros/espota-server/merge_requests/1">funny</a>)</p>



<a name="182118113"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118113" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118113">(Nov 28 2019 at 15:39)</a>:</h4>
<p>I think one'd need to install pijul for thrussh</p>



<a name="182118179"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118179" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118179">(Nov 28 2019 at 15:40)</a>:</h4>
<p>it was unclear to me about that</p>



<a name="182118183"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118183" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118183">(Nov 28 2019 at 15:40)</a>:</h4>
<p>maybe it's possible to at least file an issue?</p>



<a name="182118203"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118203" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118203">(Nov 28 2019 at 15:41)</a>:</h4>
<p>sure I'll do so and ping pmeunier on twitter</p>



<a name="182118234"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118234" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118234">(Nov 28 2019 at 15:41)</a>:</h4>
<p><span aria-label="thumbs up" class="emoji emoji-1f44d" role="img" title="thumbs up">:thumbs_up:</span></p>



<a name="182118318"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182118318" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182118318">(Nov 28 2019 at 15:42)</a>:</h4>
<p>are you more satisfied with the state of things after going through the list than earlier ?</p>



<a name="182177454"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182177454" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182177454">(Nov 29 2019 at 13:23)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> so I have a fix for thrussh 0.19.x and 0.20.x, but there's not really an issue tracker on the pijul nest. There's a kind of discussion forum. I've opened a thread there as one would a github issue, but just looking at the recent ones, this forum seems to have very low activity, and I think little to none of the recent activity did involve the crate authors. So we'll see but here it is <a href="https://nest.pijul.com/pijul_org/thrussh/discussions/42" target="_blank" title="https://nest.pijul.com/pijul_org/thrussh/discussions/42">https://nest.pijul.com/pijul_org/thrussh/discussions/42</a></p>



<a name="182177466"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182177466" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182177466">(Nov 29 2019 at 13:23)</a>:</h4>
<p>good enough, I think</p>



<a name="182177518"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182177518" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182177518">(Nov 29 2019 at 13:24)</a>:</h4>
<p>yeah, I'm definitely more satisfied -- I think we're in a pretty good place, overall</p>



<a name="182177678"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182177678" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182177678">(Nov 29 2019 at 13:26)</a>:</h4>
<p>cool</p>



<a name="182177702"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182177702" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182177702">(Nov 29 2019 at 13:26)</a>:</h4>
<p>I wonder if no crates depend on 0.20 since it wasn't in the doc</p>



<a name="182177717"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182177717" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182177717">(Nov 29 2019 at 13:27)</a>:</h4>
<p>but they'd be all equally affected on 1.40 (it's the same error)</p>



<a name="182177928"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182177928" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182177928">(Nov 29 2019 at 13:30)</a>:</h4>
<p>so I'll add this info to the hackmd and tick the box</p>



<a name="182178132"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182178132" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182178132">(Nov 29 2019 at 13:33)</a>:</h4>
<p>sounds good, yeah, seems plausible</p>



<a name="182178136"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182178136" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182178136">(Nov 29 2019 at 13:33)</a>:</h4>
<p>or it error'd out</p>



<a name="182178677"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182178677" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182178677">(Nov 29 2019 at 13:40)</a>:</h4>
<p>I've ticked the last remaining couple boxes</p>



<a name="182178717"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182178717" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182178717">(Nov 29 2019 at 13:41)</a>:</h4>
<p>we <em>could</em> do something with the older <code>wgpu</code> releases depending on the broken <code>gfx-hal</code> version, but I'm not sure it's worth it</p>



<a name="182178809"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182178809" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182178809">(Nov 29 2019 at 13:43)</a>:</h4>
<p>but otherwise I think we're good</p>



<a name="182178828"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182178828" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182178828">(Nov 29 2019 at 13:43)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> in any case let me know if you see more work to be done here</p>



<a name="182178877"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182178877" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182178877">(Nov 29 2019 at 13:44)</a>:</h4>
<p>yeah, I think it's fine to leave it here for now, will let you know if we find anything else</p>



<a name="182202722"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182202722" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182202722">(Nov 29 2019 at 20:33)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> alright we have semver-compatible updates to thrussh :)</p>



<a name="182202726"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/182202726" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#182202726">(Nov 29 2019 at 20:33)</a>:</h4>
<p>amazing!</p>



<a name="185736426"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/185736426" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#185736426">(Jan 15 2020 at 19:47)</a>:</h4>
<p>PS, this happend a while back, but I wanted to give a big Thank You <span aria-label="heart" class="emoji emoji-2764" role="img" title="heart">:heart:</span> to you two for this (<span class="user-mention" data-user-id="116113">@lqd</span>, <span class="user-mention" data-user-id="116122">@simulacrum</span>)</p>



<a name="185736696"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122657-t-compiler/wg-nll/topic/regressions%20in%20%2366517/near/185736696" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lqd <a href="https://rust-lang.github.io/zulip_archive/stream/122657-t-compiler/wg-nll/topic/regressions.20in.20.2366517.html#185736696">(Jan 15 2020 at 19:50)</a>:</h4>
<p>:) <span aria-label="crab" class="emoji emoji-1f980" role="img" title="crab">:crab:</span></p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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